sweeney



I (Model.) 2 Sheets-Sheet I.

T. J. 4SWEENEY.

INJBGTOR.

No. 554,401.A Patented Feb. 11. 1896.

(Model.) 2 sheetssheet 2.

T. J. SWEBNBY.

'Y INJECTOR.

No. 554,401. Patented Peb; 11, 1896.-

THOMAS J. SVEENEY, OF DETROIT, MICHIGAN, ASSIGNOR TO THE PENBERTHY INJEOTOR COMPANY, OF SAME PLACE.

INJ ECTO R.

SPECIFICATION forming part of Letters Patent No. 554,401, dated February 11, 1896.

Application led January 7,1895. Serial No. 534,089. (Model.)

To @ZZ whom t may concern:

Be it known that I, THOMAS J. SWEENEY, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Injectors, of which the following' is a specification, reference being had therein to the accompanying drawings.

The invention consists in the construction, arrangement, and combination of the jets and valves and in the construction of the parts, all as more fully hereinafter described.

In the drawings, Figure l is a vertical central longitudinal section through an injector embodying my invention. section thereof on line m x, Fig. l. Fig. 3 is a section of the steam end of the injector similar to Fig. l, showing the parts in a different position. Fig. 4 is a diagram section similar to Fig. 3, showing a different adjustment of the parts. Fig. 5 is a perspective view of the steam-jet and some of its attached parts detached.

A is the usual tubular casing having steaminlet branch d, water-inlet branch b, discharge c, overflow branch d, which connects with the overIlow-valve branch e by the passages f around the casing.

B is the delivering-tube secured in the partition B.

C is the combining-tube secured in thepartition C. 1

D is the'overtlowchamber between the partitions B/ O and around the contiguous ends of the combining and delivery tubes.

E is the partition between the steam and water chambers, in which is detachably secured the sleeve E', preferably secured by the tubular flange F on the plug F', as shown. This ilange is apertured, as at G, to permit the free iiow of the steam from the steam branch.

Il is the steam-nozzle, having the collar lI near its upper end fitting within the upper end of the sleeve E. Abutted against the shoulder formed by the lower end of the collar II are packing-rings I, which may be conipressed by the packing-nut .I engaging a screw-thread on the exterior of the steamnozzle.

K is a jam-nut bearing against the inutJ.

Fig. 2 is a cross` L is a tubular head on the steam-jet having side apertures therethrough.

M isa valve-stein engaging screw-threaded bearings in theplug F', its inner end entering the head L and preferably being provided with the rotary valve-disk M, adapted in its inner position to close the end of the steam-jet.

N is a collar on the end of the stem M, which in its outer position is adapted to strike the inner end of the tubular nut or block O, detachably secured in the outer end of the head L, so arranged that when the valve is closed if the stem M is turned it will first open the steam-valve without moving the steam-j et (the parts being then in the position shown in Fig. 3) until the collar N strikesthe nut O,when the further movement of the stem will move the steam-jet longitudinally. The inner end of this steam-jet is arranged in such proximity to the combining-tube as to act as a valve to control the Water-supply thereto.` I arrange this steamj et in its inner position so that With the minimum of steam-pressure the requisite amount of water may be drawn into the combiningtube'. Then if the operator desires more water he simply gives a few more turns to the stem M, which willwithdraw the stem and enlarge the water-supply port, as shown in Fig. 4C.

I deem it especially advantageous to-apply the packing to the outside of the steam-jet and make this jet detachable, as shown, so that the operator in removing the jet can get at the packing to renew or replace it with the least possible trouble and work.

It will be seen thatbyremoving the plug F the steam-jet with its packing and the sleeve E may be readily removed.

In the inner position of the stem M the steam-jet will be stopped by the inner end of the head L striking against the end ofthe sleeve E.

In starting the injector the water will spill between the end of the combining-tube and the delivery-tube and pass into the chamber` D, from the upper part of which extends a tubular passage I), formed within the overflow branch e, and in which is the gravityvalve Q, having the disks t' t', Athe upper disk seating on the shoulder 7.", formed by a IOO counterbore or enlargement in the overflowchamber.

The upper end of the overiiow branch is capped with a plug Q', which is provided with an a'pertured flange projecting within and holding in position the collar R. Upon this collar is seated the valve S, the winged stem S of which extends down to close proximity with the upper face of the valve-disk i. As the water overflows into the chamber D, as described, it will strike against the under side of the disk t' and raise the overflow-valve into the position shown in Fig. 2, so as to connect the chamberD with the overiiow-passage f, and at the same time will raise the valve S overiiow-valves by this diierence of pressure on opposite sides will begin to close. The disk i will immediately close the connection between the chamber D and the overflow-passage, thereby greatly aiding in the establishment of the jet, and at the same time the disk t" will be supported bythe water in the chamber D as long as that water remains at proper height therein, and thereby hold the valve S open until the jet is thoroughly established. The auxiliary disk 1l' therefore acts to hold the disk t' up and consequently the valve S from its seat after the water has receded from the end of the passage l. I th us absolutely control the movement of the two check-valves by the difference in pressure between the pressure-chamber and the overflow-chamber and move those valves aided by gravity just in proportion as the pressure increases or decreases in the two chambers, so I obtain a very quick starting of the injector with an exceedingly simple construction and shut off the overiiow just in proportion as the power of the jet increases, dispensing with all dashpots, restricted ports, dac. which tend to complicate the construction of the injector and detract from its usefulness in practical operation.

IVhat I claim as my invention isl. In an injector, the combination with the casing, of the combining-tube, a movable steam-conducting tube forming a valve for controlling the admission of water into the combining-tube formed with a reduced forward section and a threaded end, a sleeve in which the steam-tube is located having substantially a uniform interior bore, packingrings on the reduced end of the steam-tube located between the same and sleeve, and a compressing--nut on the threaded end of the steam-tube, substantially as described.

2. In an injector, the combination with the combining and delivery tubes and the overiiow-chamber around the same, an overiiow branch connecting at the bottom with said overflow-chamber, and at the top with the pressure-chamber, of the two coacting valves S and It" in the overiiow branch, and the auxiliary disk or piston valve i below the valve i', the parts arranged as and for the purpose described.

3. In an injector, the combination with the casing having` overflow and pressure chambers, combining delivery-jets, and an overflow branch connecting at top and bottom with the pressure and overiow chambers respectively, of a check-valve for the overflowchamber having a lower plunger-disk, and an upper seating-disk, and the coacting gravity check-valve S between the pressure and overiiow chambers, substantially as described.

In testimony whereof I ali-ix my signature in presence of two witnesses.

THOMAS J. SWE ANEY. lVitnesses JAS. WHITTEMORE, M. B. ODOGHERTY. 

